[U-Boot] [PATCH v3 4/7] i2c: at91_i2c: Remove unnecessary clock calling
Wenyou Yang
wenyou.yang at atmel.com
Tue Sep 27 05:00:31 CEST 2016
Due to the peripheral clock driver improvement, remove the
unnecessary clock calling.
Signed-off-by: Wenyou Yang <wenyou.yang at atmel.com>
Reviewed-by: Heiko Schocher <hs at denx.de>
---
Changes in v3: None
Changes in v2: None
drivers/i2c/at91_i2c.c | 16 ----------------
1 file changed, 16 deletions(-)
diff --git a/drivers/i2c/at91_i2c.c b/drivers/i2c/at91_i2c.c
index d71f75c..dcd3ce8 100644
--- a/drivers/i2c/at91_i2c.c
+++ b/drivers/i2c/at91_i2c.c
@@ -176,34 +176,18 @@ static void at91_calc_i2c_clock(struct udevice *dev, int i2c_clk)
static int at91_i2c_enable_clk(struct udevice *dev)
{
struct at91_i2c_bus *bus = dev_get_priv(dev);
- struct udevice *dev_clk;
struct clk clk;
ulong clk_rate;
- int periph;
int ret;
ret = clk_get_by_index(dev, 0, &clk);
if (ret)
return -EINVAL;
- periph = fdtdec_get_uint(gd->fdt_blob, clk.dev->of_offset, "reg", -1);
- if (periph < 0)
- return -EINVAL;
-
- dev_clk = dev_get_parent(clk.dev);
- ret = clk_request(dev_clk, &clk);
- if (ret)
- return ret;
-
- clk.id = periph;
ret = clk_enable(&clk);
if (ret)
return ret;
- ret = clk_get_by_index(dev_clk, 0, &clk);
- if (ret)
- return ret;
-
clk_rate = clk_get_rate(&clk);
if (!clk_rate)
return -ENODEV;
--
2.7.4
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